Alphacool OTC Flat 8800 Water Block

Packaging and Contents

Packaging and Contents

When I received the new Alphacool OTC Flat water block it came in a bubble pack reminiscent of those used by memory manufacturers, but just a little deeper to accomodate the water block. The packaging in its current format offers no protection what-so-ever from over-zealous couriers, and mine when it arrived was badly cracked. As a result I have decided not to include an image of the packaging. The water block itself is kept in a zip-lock plastic bag and features a silica gel sachet to minimise the effects of tarnishing or oxidation.

Chris Banks (International Sales and PR Manager for Alphacool GmbH) has told me that they are currently in the process of renewing all the packaging for their product lines, and when the new packaging is available it should look something like this.

Alphacool new packaging
 
I'm sure that you will all agree that the new packaging should provide significantly more protection.

Included in the packaging is everything that you need to water-cool your GPU, with the exception of barbs. Alphacool doesn't supply barbs with their hardware simply because they like to allow their customers to make a choice. All reputable retailers should provide a choice of barbs with the Alphacool OTC Flat, so bear this in mind. I have included my personal favourites, the EK hi-flow 1/2".
 
Alphacool OTC Flat package contents

Included in the packaging are the following items:

* 1 x Alphacool OTC Flat water block
* Mounting hardware
* Thermal pads for memory, mosfets and VRM's
* Thermal adhesive
* 1 x allen key

A Closer Look

There's a saying that first impressions are usually lasting ones...and the Alphacool OTC Flat is very stylish to say the least.
 
Alphacool OTC Flat Alphacool OTC Flat reverse
Alphacool OTC Flat Alphacool OTC Flat

Alphacool as a company are very commited to producing water-cooling hardware that does the job well. Further, they use thermal-imaging technology to assess the hotspots on a particular piece of kit, and design their cooling solutions around alleviating them. The base appears to have been finished with 'glass balling' to ensure maximum thermal transfer between the graphics card and the water block itself.
 
Thickness of the water block
 
At a mere 4mm I still can't believe how thin the Alphacool OTC Flat really is.
 
Alphacool OTC Flat image showing thickness Thickness again

Unlike the Alphacool NVXP-G8 the Alphacool OTC Flat doesn't restrict you to having the inlet and outlet in one static position only. Whilst the OTC Flat still isn't as configurable as the EK water blocks, it certainly is a step in the right direction. SLI enthusiasts may have another choice for water-cooling now! 
 
Inlet/Outlet configuration Inlet/Outlet removed
 Inlet and outlet channels Barb direction changed
 
Changing the direction of the barbs is an absolute cinch. Simply undo the 3 Allen Key screws and change the direction of the barb recepticle and the blanking plate, ensuring that the 'O-rings' are reseated properly, and then tighten. Voila...easy peasy. 
 
Naked NVIDIA 8800GTS Alphacool OTC Flat installed
Alphacool OTC Flat installed side shot
 
 
Installation of the Alphacool OTC Flat was very quick indeed. Faster than the EK FC8800GTS, in fact!
 
Let's head over the page to see how we're going to test the Alphacool OTC Flat...
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Most Recent Comments

02-12-2007, 06:48:11

PV5150
Are you a meat and 3 veg kind of hardware junky or do you prefer the more delicate things in life? Today we tested the ultra-thin Alphacool OTC Flat 8800 full-cover water block to see how it performed.

http://www.overclock3d.net/gfx/artic...005840448s.jpg

Linkage

02-12-2007, 13:43:02

FarFarAway
Great well written review Peevs. I have been wondering how these will fair and in the very least they are an attractive solution offering a bit of choice. Bit of a shame about the overall performance but looks like I'll be happy with my EK block

02-12-2007, 13:57:54

Ham
I like the idea of this block tbh. Looks just so much nicer than the usual fat-topped ones. And for its size (or lack of), doesn't perform too badly.

Nice job Mr Pvs.

02-12-2007, 19:01:47

PV5150
Thanks guys, the feedback is appreciated. I'm glad you found the review a good read.

02-12-2007, 19:05:56

duke
I can't believe how thin it is!

Kinda disappointing about the conclusion, but that doesn't bother me as I bought the EK

02-12-2007, 19:46:07

NickS
Got flow?

Good review Peeves

02-12-2007, 19:54:23

llwyd
Nice review mate

Results were pretty much what one would expect from the offset

Looks like this has taken us up to 3000 live articles

02-12-2007, 22:35:41

PV5150
Thanks guys Yes the OTC Flat certainly looks the goods, and it is a valiant step away from the traditional. But yes, it's poor flow performance certainly makes it hard to recommend over better performing blocks. As far as temp's go it performed quite admirably.

06-12-2007, 06:40:51

JN
Oops I missed this one. Good review there mate. Certainly a block worth considering if you're tight for space (like my EK block getting in the way of my D5 pump on my old rig)

06-12-2007, 08:09:57

SuB
i can't believe how thin that is, its understandable how much flow is lost but the temps are reasonable at least i'm happy with my ek but if i was going for something different and wanted a sexy thin look i'd deffinately pick this, i bet it looks awesome mounted in sli although i imagine temps would suffer due the extreme loss of flow through 2 blocks?

perhaps there could be a review of this on 2 cards to see if there is any major temperature difference between the cards when used in sli?
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